Direct-pressure valve.



G. A. WULF.

DIRECT PRESSURE VALVE- APPLICATION FILED MAY 20, 1910.

984,410. Patented Feb. 14,1911;

1-": NORRIS PETERS :0. WASHINGTON, 04c.

UNITED OFFICE.

CHARLES A. WULF, OF INDIANAPOLIS, INDIANA.

DIRECT-PRESSURE VALVE.

Specification of Letters Patent.

Patented Feb. 14, 1911.

Application filed May 20, 1910. Serial No. 562,428.

To all whom it may concern:

Be it known that I, CHARLES A. WULr, a citizen of the United States,residing at Indianapolis, in the county of Marion and State of Indiana,have invented a new and useful Direct-Pressure Valve, of which thefollowing is a specification.

The object of my invention is to produce a valve for use in controllingthe fiow of water, under direct pressure, to a water closet, means beingprovided to readily regulate the time of flushing flow and for readilywithdrawing the controlling valve structure for repair.

The accompanying drawings illustrate my invention.

Figure 1 is a side elevation in partial vertical section and Fig. 2 avertical section through the rock-shaft.

In the drawings, 10 indicates the main body of the valve provided at itsupper end with a threaded portion 11 adapted to receive the couplingring 12. The ring 12 is carried by the main body 13 of a stop cock ofpeculiar formation having a taper bore 14; in which is mounted a hollowtapered valve 15 having an opening 16 in one side adapted to registerwith the supply inlet 17 The upper end of valve 15 is projected andprovided with a squared end 18 by means of which it can be readilyturned.

Formed in the main body 10 near its upper end is a valve seat 21 andmounted loosely within the main body 10 is a valve 22 adapted to seatupon seat 21. At its lower end valve 22 is provided with a projection 28adapted to be engaged by a cam 24 by means of which the valve may beraised and held from its seat. Cam 24 is carried by rocloshaft 25journaled in main body 10. Secured to the outer end of shaft 25 is alever 26 within which is formed a dash-pot cylinder 27 having an endwall 28 which lies some distance from the end of the lever. For purposesof ornament the end 29 of lever 26 is enlarged into a ball which ishollow and perforated at 31. Within the hollow ball 29 and integral withwall 28 is vent tube 32 which leads into cylinder 27, and mounted in thetube 32 is a needle valve 33 which may be adjusted to control theeffective area of the vent tube. The end of tube 32 and valve 33 heentirely within the ball 29 so that the end of valve 33 is onlyaccessible by passing a screw driver or other suitable instrumentthrough hole 31. By

P this arrangement the lever 26 is in such condition that it may bereadily polished and yet the polish used for the purpose cannot possiblybecome lodged around the vent passage 3a of the valve 33. If some sortof provision of this kind is not made, I find that janitors are verylikely to stop up the vent passage 34 and thus prevent proper operationof the structure.

Mounted in the cylinder or dash-pot 27 is a piston 35 to the outer endof which is pivotally connected a link 36 pivoted upon a pin 87 formedintegral with the casing 10, as shown, eccentric to the axis of shaft25, the arrangement being such that, as lever 26 is swung upwardly tobring cam 24: into e11 gagement with valve 22 so as to-raise said valvefrom its seat, piston 35 will be drawn outwardly in the cylinder, airpassing freely into the cylinder around the packing of the piston. Thetime of the return movement of the lever, which is due both to itsunbalanced weight and to the pressure of the water upon valve 22, willbe controlled by the speed of outflow of air from cylinder 27 throughthe vent tube 32 and passage 34.

I claim as my invention.

1. The combination, with a main casing having a valve seat formedtherein, of a valve mounted in the casing and movable toward and fromthe seat, a rock-shaft journaled in the casing, means carried by theshaft for engaging the valve and raising it from its seat, an operatinglever secured to the shaft and having a dash-pot cylinder formed thereinat an angle to the shaft with a vent passage leading from the outer endof the cylinder within a chamber formed in the outer end of the lever, avalve for controlling said vent passage, said valve having itsaccessible end within the chamber at the outer end of the lever, aplunger mounted in the dash-pot cylinder, and a. connection between saidplunger and the casing eccentric to the rock-shaft.

2. The combination, with a main casing having a valve seat formedtherein, of a valve mounted in the casing and movable toward and fromthe seat, a rock-shaft journaled in the casing, means carried by theshaft for engaging the valve and raising it from its seat, an operatinglever secured to the shaft and having a dash-pot cylinder formed thereinat an angle to the shaft with a vent passage leading from the outer endof the cylinder, a valve for controlling said vent passage, a plungermounted in the dash-pot cylinder, and a connection between said plungerand the casing eccentric to the rock-shaft.

8. The combination, with a main easing having a valve seat formedtherein, of a valve mounted in the casing and movable toward and fromthe seat, a rock-shaft journaled in the casing, means carried 10 theshaft for engaging the valve and raising it from its seat, an operatinglever secured to the shaft and having a dash-pot cylinder formed thereinat an angle to the shaft with

